Valid Assessment

Assessment is valid when the process is sound and assesses what it claims to assess. Validity requires that:

  • (a) assessment against the units of competency must cover the broad range of skills and knowledge that are essential to competent performance
  • (b) assessment of knowledge and skills must be integrated with their practical application
  • (c) judgement of competence must be based on sufficient evidence (that is, evidence gathered on a number of occasions and in a range of contexts using different assessment methods). The specific evidence requirements of each unit of competency provide advice on sufficiency


Reliability refers to the degree to which evidence presented for assessment is consistently interpreted and results in consistent assessment outcomes. Reliability requires the assessor to have the required competencies in assessment and relevant vocational competencies (or to assess in conjunction with someone who has the vocational competencies). It can only be achieved when assessors share a common interpretation of the assessment requirements of the unit(s) being assessed.


To be flexible, assessment should reflect the learner's needs providing for the recognition of competencies no matter how, where or when they have been acquired, draw on a range of methods appropriate to the context, competency and support continuous competency development.


Fairness in assessment requires consideration of the learner's needs and characteristics taking into account any reasonable adjustments to be applied. It requires clear communication between the assessor and the learner too ensure the learner is fully informed about and understands the assessment process and agrees the process is appropriate. It also includes an opportunity for the learner  being assessed to challenge the result of the assessment and be reassessed if necessary.


Sufficiency relates to the quality and quantity of any evidence assessed. It requires collection of enough appropriate evidence to ensure that all aspects of competency are satisfied and  competency can be demonstrated repeatedly. Supplementary sources of evidence may be necessary. The specific evidence requirements of each unit of competency provide advice on sufficiency. Sufficiency is also one of the rules of evidence.

Rules of Evidence

The rules of evidence guide the collection of evidence that address the principles of validity and reliability, guiding the collection of evidence to ensure that it is valid, sufficient, current and authentic.

Created  by the ETAS Team